CN1056170C - Continuous coking process and equipment thereof - Google Patents
Continuous coking process and equipment thereof Download PDFInfo
- Publication number
- CN1056170C CN1056170C CN94106130A CN94106130A CN1056170C CN 1056170 C CN1056170 C CN 1056170C CN 94106130 A CN94106130 A CN 94106130A CN 94106130 A CN94106130 A CN 94106130A CN 1056170 C CN1056170 C CN 1056170C
- Authority
- CN
- China
- Prior art keywords
- chamber
- gas
- coking
- coal
- high temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Coke Industry (AREA)
Abstract
The present invention provides a continuous coking method with mixed internal and external heating and a device thereof, particularly a continuous production device mainly used for producing metallurgical coke and domestic gas in the conversion technique of coal processing. The present invention is characterized in that a burning chamber is arranged at the middle of the device, carbonization chambers are arranged at both sides of the device, gas collecting chambers are arranged outside the carbonization chambers, and a coal preheating and drying section, a dry distillation section, a high temperature section, a steam gasification reaction section and a cooling section are arranged in the carbonization chambers. With the structure, the device can adopt tamping coal and recycle the sensible heat of red coke to produce the metallurgical coke and the domestic gas with high heat values. The present invention integrates the functions of the tamping coking, the recycle of the heat energy of the red coke, gas, chemical products and environmental protection, and has the characteristics of continuous mechanical production, low investment, high benefit, etc. Thereby, the device of the present invention is suitable for the civil coal gasification project and the reformation of coking plants and soil coke in counties, towns or mining areas.
Description
The present invention relates to a kind of method and equipment thereof of continuous coking, particularly the device of continuous production metallurgical coke, recovery coal gas and other chemical products in the coal processing transformation technology.
The M of the Nippon Steel Formed Coke Furnace of the Otto of the Cowes of existing China's 58 types and large capacity coke oven, the U.S., Germany, Japan, the П BP of the Soviet Union, the ubiquitous several problems of these coke ovens are, the first, require high to the homogeneous heating unanimity; The second, have the characteristics of single stove batch production.This requirement and characteristics, caused discharge of the coke and when coalingging furnace roof smolder and burn with anger; The 3rd, red burnt sensible heat is difficult to reclaim, although dry quenching(of coke) can reclaim heat energy, investment is expensive; Wet quenching not only consumes a large amount of coke quenching waters, but also causes the pollution of coke quenching steam and dust.In vapourizing furnace, the normal pressure two-stage gasifier is finished destructive distillation and gasification continuously, has made full use of the sensible heat of hot semicoke, thermo-efficiency is higher, adaptability to coal is also stronger, is to be gasified totally but this stove carries out raw material, can not be in gasification production metallurgy Jiao.CN92101650.6 discloses a kind of continuous coking iron alloy coke oven, this coke oven is provided with coking chamber at the body of heater middle part, both sides are provided with the combustion chamber, the a plurality of flues that are divided into the combustion chamber are corresponding bottom flue, air gives the hot cell, the top is provided with primary structure formations such as Burning Room, these structures make this stove and accessory have air to give heat, twice aeration, inside and outside thermal bond, reclaim the function of coal gas, and can utilize weak cohesiveness material continuous production, characteristics such as free from environmental pollution, its main drawback is to utilize weak caking coal to produce coke for ferroalloy, raw material sources are restricted, and can not production metallurgy Jiao.
The objective of the invention is to provides a kind of usefulness to make the method and the equipment thereof of the continuous coking of coal charge, recovery red burnt sensible heat, production metallurgy Jiao and coal gas firm by ramming at above-mentioned deficiency of the prior art.
Purpose of the present invention can reach by following measure, will go into the stove coal charge and make firm by ramming, sends into the furnace roof bucket of coalingging through lift, and under the effect of the gravity of coal charge and coal compression machine, discharges of the coke and descends with the discharge of the coke continuous rotation of machine of coke oven bottom scraper plate.When coal charge entered the drying and carbonization section, the part high-temp waste gas that produces after the coal gas of generation and the combustion chambers burn mixed, and enters the raw gas collecting chamber through the import of coking chamber wall raw gas.Coal charge continues to descend, the direct contact heat-exchanging of high-temp waste gas that enters high temperature section and produce with the combustion chamber, the water-gas that high-temp waste gas after the heat exchange, the new coal gas that produces and bottom produce mixes and enters the coal gas of high temperature collecting chamber by the wall coal gas of high temperature import of carbonization chamber, by this high temperature section coke maturation.Red burnt continuation descends and enters water vapor gasification cooling section, and with the reaction of water vapor generating gasification, the water-gas of generation rises and enters the coal gas of high temperature collecting chamber.Continue to descend through gasification reaction refrigerative coke, enter the arc jacket water (J.W.) cold type bucket that discharges of the coke, and with the further heat exchange of water vapor of rising, fall into fluid-tight quenching groove after the heat exchange, the coke after extinguishing is scraped by the scraper plate machine that discharges of the coke.The raw gas that produces in the production process, high-temp waste gas and water-gas, can regulate turnover panel by coal gas of high temperature chamber suction adjusting turnover panel and raw gas chamber suction in the distribution of raw gas collecting chamber and coal gas of high temperature collecting chamber and regulate, and control coke making process process and gas quality.
The equipment that is used for method for continuously coking, by coal compression machine, the bucket of coalingging, coking chamber coal envelope section, gas inlet, gas entry, the combustion chamber, the raw gas outlet, coking chamber drying and carbonization section, the import of coking chamber wall raw gas, body of heater, the raw gas collecting chamber, coking chamber, raw gas chamber suction is regulated turnover panel, the import of coking chamber wall coal gas of high temperature, the coking chamber high temperature section, the combustion chamber blank wall, the coal gas of high temperature collecting chamber, coking chamber gasification cooling section, coal gas of high temperature chamber suction is regulated turnover panel, the coal gas of high temperature outlet, the coke oven base, the arc jacket water (J.W.) cold type bucket that discharges of the coke, the scraper plate machine that discharges of the coke, fluid-tight quenching groove is formed, and coking chamber and combustion chamber partition wall be designed to real hollow structure down, top, combustion chamber and carbonization chamber are separated, and the bottom is communicated with coking chamber.Coking chamber is made up of coking chamber drying and carbonization section, coking chamber high temperature section and coking chamber cooling section.Coal gas and air spray into combustion chambers burn from the body of heater top, the incendiary high-temp waste gas is earlier through after the blank wall section, coal charge is carried out indirect heating, entering coking chamber from bottom blank wall section then directly contacts with coal charge, carry out direct heating, make this stove and accessory that indirect heating and direct-fired Hybrid Heating function are arranged like this.At the reaction of gasification cooling section generating gasification, the red burnt sensible heat of recovery.On the coking chamber external wall, be provided with the import of coking chamber wall raw gas, raw gas collecting chamber and coal gas of high temperature import of coking chamber wall and coal gas of high temperature collecting chamber, in addition, also be provided with coal gas of high temperature chamber suction and regulate turnover panel and raw gas chamber suction adjusting turnover panel.
The present invention has found out that substantive inherent combined symptoms is caused by static destructive distillation in the prior art, and broken static over 100 years coking idea, zone heating has at first been proposed, (the coal charge expansion arc is a blank wall in the segmental structure management, the semicoke contraction section is a blank wall) and the dynamic coking theory that organically combines of continuous coking, and finished the Proper Design of continuous coking on this basis.The present invention compared with prior art has the following advantages: at first adopt and make coal charge firm by ramming and go into stove, enlarged the use range of coal, improved coke quality, and cost is reduced greatly.Become cold zone and storing section in the coking chamber top design, make the coal process carry out continuously and suppressed furnace roof and smoldered and burn with anger, thoroughly eliminated the furnace roof pollution; Mix the by the use of thermal means heating in coking chamber drying and carbonization section, high temperature section, employing, improved thermo-efficiency; Design has the gasification cooling section in the coking chamber bottom, and coke quenching steam rises and red burnt heat exchange, and gasification reaction is carried out in this section in the back of heating up, and has made full use of red burnt heat energy, has eliminated the pollution in the quenching process.The more important thing is that material through drying and carbonization section, high temperature section, vaporization cooling section, shortens coking time greatly.In bottom of furnace body design the scraper plate machine that discharges of the coke is arranged, cancelled pushing machine, heavy mechanical equipments such as coke guide and reversing machine have not only reduced equipment, have simplified operation, but also have realized the mechanize of the discharging of the coke of coalingging, and have improved Working environment.This stove investment is little, simple in structure, the mechanization degree height, and management easy to operate, applied widely.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the furnace binding synoptic diagram.
Fig. 2 is a Figure of abstract.
Among Fig. 1: 1. coal compression machine 2. bucket 3. carbonization chamber coals envelope section 4. air intakes 5. gas entries 6. combustion chambers 7. raw coke oven gas of coalingging export 8. carbonization chamber drying and carbonization sections, 9. carbonization chamber wall raw coke oven gas imports, 10. bodies of heater, 11. raw coke oven gas collecting chambers, 12. carbonization chambers, 13. raw coke oven gas chamber suction and regulate turnover panels 14. carbonization chamber wall coal gas of high temperature imports 15. carbonization chamber high temperature section 16. combustion chamber blank walls 17. coal gas of high temperature collecting chambers 18. carbonization chambers gasification cooling section 19. high-temperature coal air chamber suction and regulate turnover panel 20. coal gas of high temperature and export 21. coke oven bases, the 22. arc jacket water-cooling types bucket 23. scraper plates machine 24. fluid-tight quenching grooves that discharge of the coke that discharge of the coke
The present invention is described in further detail below in conjunction with (accompanying drawing) embodiment.
The present invention is an example to produce 10000 tons of metallurgical cokes per year, coke oven base (21) is built up by Steel Concrete on ground level, the inner refractory brick of using of body of heater (10), the periphery is built into common brick, the top of intermediate combustion chamber (6) is built into blank wall, the bottom is built into blank wall, and the top has gas inlet (4) and gas entry (5).The both sides of (6) build up coking chamber (12) in the combustion chamber, and leave coking chamber wall raw gas import (9) on the exterior wall of the coking chamber drying and carbonization section (8) of coking chamber (12); On the exterior wall of the coking chamber high temperature section (15) of coking chamber (12), leave coking chamber coal gas of high temperature import (14); Outside the exterior wall of coking chamber (12) both sides, top is provided with raw gas collecting chamber (11) and raw gas outlet (7), the bottom is provided with coal gas of high temperature collecting chamber (17) and coal gas of high temperature outlet (20), and is respectively equipped with raw gas chamber suction adjusting turnover panel (13) and coal gas of high temperature chamber suction adjusting turnover panel (19) in raw gas collecting chamber (11) and coal gas of high temperature collecting chamber (17).Be built into coking chamber coal envelope section (3) on the top of coking chamber (12), the top is built into the taper bucket (2) of coalingging, and is provided with the coal compression machine of being made up of electric motor and step-down gear (1) above it.Be provided with arc jacket water (J.W.) cold type bucket (22) and fluid-tight quenching groove (24) and the scraper plate machine (23) that discharges of the coke that discharges of the coke in the bottom of the coking chamber (12) of the coke oven base (21) of body of heater (10).
During coking, to go into the stove coal charge earlier makes firm by ramming corresponding and leave the coal cinder of gas flue at periphery with coking chamber inlet size through making groove firm by ramming, the furnace roof bucket (2) of coalingging is delivered to by lift in the back, the coal charge that makes whole coking chamber discharges of the coke and slowly descends with the discharge of the coke continuous rotation of machine (23) of bottom of furnace body scraper plate under the pressure of the effect of gravity and furnace roof coal compression machine (1), when coal charge slowly enters the drying and carbonization section (8) of coking chamber (12), heat comes to the heat that the indirect heating and the part high-temp waste gas of coking chamber wall bring coal charge to be expanded, for the coal charge of resisting this section expands, the partition wall of coking chamber (12) and combustion chamber (6) adopts full-closed structure, this moment, coal charge was separated out a large amount of raw gas through drying and carbonization, entered raw gas collecting chamber (11) through carbonization chamber raw gas import (9).Middle and lower part in retort section, because semicoke shrinks and the fissured generation of coke, part high-temp waste gas after the combustion chambers burn, will be along rising on the slit between semicoke and the coking chamber wall, collect mouthful (9) by gas flue in the coal charge and coking chamber raw gas then and enter raw gas collecting chamber (11), the raw gas that raw gas collecting chamber (11) is collected is sent through raw gas outlet (7).The destructive distillation material continues to descend, enter the coking chamber high temperature section (15) of coking chamber (12), material shrinks and cracks, the high-temp waste gas that combustion chamber (6) produces is through combustion chamber blank wall (16), from the crackle that coal charge produces, pass, enter coal gas of high temperature collecting chamber (17) by coking chamber coal gas of high temperature import (14), send through coal gas of high temperature outlet (20) then, the destructive distillation material directly contacts by this carbonization chamber high temperature section (15) back and making the reinforcement of conducting heat, coking time shortens, the coke maturation, red burnt continuation descends and enters coking chamber gasification cooling section (18), at this stage high temperature coke and the water vapor generation vaporization reaction that produces from fluid-tight quenching groove (24), red burnt temperature is reduced, coke in arc jacket water (J.W.) cold type discharges of the coke the decline process of bucket (22) once more with the water vapor heat exchange of rising, steam temperature raises and coke temperature continues decline, fall into fluid-tight quenching groove (24) up to coke, scrape by the scraper plate machine (23) that discharges of the coke at last.
Firing tunnel in coking furnace and air enter combustion chamber (6) burning through gas entry (5) and gas inlet (4), high-temp waste gas after the burning enters coking chamber (12) through the combustion chamber of bottom blank wall (16), flowing of these waste gas can divide two portions, dry distillation gas that part high-temp waste gas and high temperature section produce and next water-gas to hypomere, enter coal gas of high temperature collecting chamber (17) through coking chamber wall coal gas of high temperature import (14), send by coal gas of high temperature outlet (20) then.Coal gas of high temperature outlet suction is regulated turnover panel (19) by coal gas of high temperature chamber suction and is controlled.After another part high-temp waste gas enters coking chamber (12), rise along combustion chamber blank wall (16), enter raw gas collecting chamber (11) with the raw gas of hole and generation through coking chamber wall raw gas import (9) by the gas flue on the coal charge and crackle then, send by raw gas outlet (7) at last.The suction of raw gas outlet (7) can be regulated turnover panel (13) by raw gas chamber suction and control.After coal gas that coal gas of high temperature outlet (20) and raw gas outlet (7) are sent is with the routine techniques processing, become commodity coal gas.
This coke oven is invested about 2,700,000 yuan, wherein coke oven is invested 700,000 yuan, gas tar is recouped the investment 2,000,000 yuan, produces 20,000 tons in coke, coal gas 520 ten thousand steres, 700 tons in tar, with 50 yuan of the burnt profits of ton, 0.3 yuan of every cubic metre of coal gas, 700 yuan of meters of ton tar, annual profitable 3,050,000 yuan, then recyclable full investment in 11 months.
Claims (4)
1. the method for a continuous coking, it is characterized in that after making firm by ramming, sending into the furnace roof bucket (2) of coalingging by lift into the stove coal charge, and under the effect of the gravity of coal charge and coal compression machine (1), discharge of the coke that the continuous rotation of machine (23) is discharged of the coke and slowly descend with coke oven bottom scraper plate, enter the blank wall of coking chamber drying and carbonization section (8) when coal charge after, carry out indirect heating, separate out a large amount of raw gas, entering coking chamber high temperature section (15) then directly contacts with high-temp waste gas, carry out direct heating, fall into fluid-tight quenching groove (24) through the arc jacket water (J.W.) cold type bucket (22) that discharges of the coke after the coke maturation, the coke after extinguishing is scraped by the scraper plate machine (23) that discharges of the coke.
2. the method for continuous coking according to claim 1, it is characterized in that the raw gas import (9) of part high-temp waste gas on coking chamber (12) and raw gas collecting chamber (11) partition wall that a large amount of raw gas that coking chamber drying and carbonization section (8) is separated out and combustion chamber (6) produce enters raw gas collecting chamber (11), the part coal gas that coking chamber high temperature section (15) produces, the part high-temp waste gas that the water-gas that coking chamber gasification cooling section (18) produces and combustion chamber (6) produce enters coal gas of high temperature collecting chamber (17) by the coal gas of high temperature import (14) on the partition wall between coking chamber (12) and the coal gas of high temperature collecting chamber (17), then the raw gas collecting chamber (11) and the coal gas of coal gas of high temperature collecting chamber (17) is sent.
3. the method for continuous coking according to claim 1, after it is characterized in that red Jiao enters fluid-tight quenching groove (24), rise in portion water vaporization back, with the coke heat that descends, enter coking chamber cooling section (18) gasification then, the product of its reaction enters coal gas of high temperature collecting chamber (17) through coking chamber wall coal gas of high temperature import (14).
4. equipment that is used for the described method for continuously coking of claim 1, by coal compression machine (1), the bucket (2) of coalingging, coking chamber coal envelope section (3), gas inlet (4), gas entry (5), combustion chamber (6), raw gas outlet (7), coking chamber drying and carbonization section (8), coking chamber wall raw gas import (9), body of heater (10), raw gas collecting chamber (11), coking chamber (12), raw gas chamber suction is regulated turnover panel (13), coking chamber wall coal gas of high temperature import (14), coking chamber high temperature section (15), combustion chamber blank wall (16), coal gas of high temperature collecting chamber (17), coking chamber gasification cooling section (18), coal gas of high temperature chamber suction is regulated turnover panel (19), coal gas of high temperature outlet (20), coke oven base (21), the arc jacket water (J.W.) cold type bucket (22) that discharges of the coke, the scraper plate machine (23) that discharges of the coke, fluid-tight quenching groove (24) is formed, it is characterized in that the partition wall between coking chamber (12) and combustion chamber (6) is made up of coking chamber blank wall and (16) two kinds of structures of blank wall, coking chamber (12) is by coking chamber drying and carbonization section (8), coking chamber high temperature section (15) and coking chamber gasification cooling section (18) are formed, and on external wall, leave carbonization chamber wall raw gas import (9) connection raw gas collecting chamber (11) and carbonization chamber wall coal gas of high temperature import (14) connection coal gas of high temperature collecting chamber (17), and be provided with coal gas of high temperature chamber suction adjusting turnover panel (19) and raw gas chamber suction adjusting turnover panel (13) betwixt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94106130A CN1056170C (en) | 1994-06-09 | 1994-06-09 | Continuous coking process and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94106130A CN1056170C (en) | 1994-06-09 | 1994-06-09 | Continuous coking process and equipment thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1114342A CN1114342A (en) | 1996-01-03 |
| CN1056170C true CN1056170C (en) | 2000-09-06 |
Family
ID=5032412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94106130A Expired - Fee Related CN1056170C (en) | 1994-06-09 | 1994-06-09 | Continuous coking process and equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1056170C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966612B (en) * | 2006-10-30 | 2010-12-08 | 陕西省神木县三江煤化工有限责任公司 | Low-temperature coal carbonization manufacturing technique |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006005189A1 (en) * | 2006-02-02 | 2007-08-09 | Uhde Gmbh | Method for producing coke with high volatile content in coking chamber of non recovery or heat recovery type coke oven, involves filling coking chamber with layer of coal, where cooling water vapor is introduced in coke oven |
| CN100424151C (en) * | 2006-03-06 | 2008-10-08 | 沈阳东方钢铁有限公司 | Thermal-state temping coking process |
| CN101792675B (en) * | 2010-04-08 | 2013-12-25 | 徐列 | Coke oven and coking process method |
| CN102079982B (en) * | 2010-12-03 | 2013-04-24 | 宜宾天原集团股份有限公司 | Production method of formed coke |
| CN103194266B (en) * | 2013-04-10 | 2014-07-02 | 山西鑫立能源科技有限公司 | Method for continuously pyrolyzing and gasifying coal gangues |
| CN103224814B (en) * | 2013-04-10 | 2014-10-08 | 山西鑫立能源科技有限公司 | Method for active coke regeneration through hot exhaust gas obtained by purification and combustion of coke oven raw gas in coal gangue pyrolysis gasification |
| CN104109545A (en) * | 2014-07-23 | 2014-10-22 | 高荣 | Process and device for carbonizing coal in indirect heating and direct gas heating ways |
| CN106047386A (en) * | 2016-05-20 | 2016-10-26 | 江苏盈丰智能工程科技有限公司 | Energy-saving type coal carbonization production method |
| CN107022675B (en) * | 2017-05-18 | 2018-12-25 | 刘慧南 | A kind of roasting/Distallation systm and its application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3912597A (en) * | 1974-03-08 | 1975-10-14 | James E Macdonald | Smokeless non-recovery type coke oven |
| CN1035557A (en) * | 1987-10-30 | 1989-09-13 | 中央地质科学研究院有色及贵金属研究所 | Monitor the method for slim-lined construction state and realize the equipment that this method is used |
| CN1015766B (en) * | 1988-03-30 | 1992-03-04 | Rca许可公司 | Colour picture tube having improved shadow mask-frame assembly |
| CN1016339B (en) * | 1988-08-08 | 1992-04-22 | 哈尔滨师范大学 | Extraction method of 4-amino-3-methylphenol |
-
1994
- 1994-06-09 CN CN94106130A patent/CN1056170C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3912597A (en) * | 1974-03-08 | 1975-10-14 | James E Macdonald | Smokeless non-recovery type coke oven |
| CN1035557A (en) * | 1987-10-30 | 1989-09-13 | 中央地质科学研究院有色及贵金属研究所 | Monitor the method for slim-lined construction state and realize the equipment that this method is used |
| CN1015766B (en) * | 1988-03-30 | 1992-03-04 | Rca许可公司 | Colour picture tube having improved shadow mask-frame assembly |
| CN1016339B (en) * | 1988-08-08 | 1992-04-22 | 哈尔滨师范大学 | Extraction method of 4-amino-3-methylphenol |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966612B (en) * | 2006-10-30 | 2010-12-08 | 陕西省神木县三江煤化工有限责任公司 | Low-temperature coal carbonization manufacturing technique |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1114342A (en) | 1996-01-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101942313B (en) | Huadian type process and device for dry distillation of oil shale | |
| CN103666507B (en) | Internally heated coal carbonization furnace, internally heated coal carbonization system and coal carbonization technical method | |
| CN203487094U (en) | Integrated drying, carbonizing and activating equipment for carbon-containing solids | |
| CN1056170C (en) | Continuous coking process and equipment thereof | |
| CN101649214B (en) | Externally-fired oil shale distillation process and device | |
| CN201158629Y (en) | Rubbish biomass poly-generation processing system and equipment | |
| CN104073276A (en) | Drying, carbonizing and activating integrated method and equipment for solid carbon-containing substances | |
| CN100560690C (en) | A kind of fully enclosed vertical coke oven | |
| CN102827619B (en) | Integrated gas retort | |
| CN102766476B (en) | Multi-layer upright tower type duff dust and oil shale distillation plant with stirring function and process | |
| CN105542863A (en) | External heat radiation regenerative oil shale dry distillation furnace | |
| CN1249201C (en) | Vertical automatic cokery with cold loading and cold discharge | |
| CN106987276A (en) | A kind of method of system and producing synthesis gas based on predrying progress life refuse high temperature gasification producing synthesis gas | |
| CN2595807Y (en) | Vertical continuous coking furnace | |
| CN1570024A (en) | Heat transfer room type heat recovery coke-oven | |
| CN206916082U (en) | A kind of system based on predrying progress life refuse high temperature gasification producing synthesis gas | |
| CN203048874U (en) | All-in-one destructive distillation furnace | |
| CN201280537Y (en) | Clean heat-recovery tamping type coke oven | |
| CN1049917C (en) | Multifunctional slope-tunnel coke oven | |
| CN101519595B (en) | Coal-carbonifying device | |
| CN2232039Y (en) | Vertical continuous coke furnace | |
| CN101314715A (en) | Double-layer charing chamber type coke oven with wedged bottom | |
| CN2871535Y (en) | Water-cooled jacket set | |
| CN1076018A (en) | The continuously carbonizing vertical furnace of inside and outside heating | |
| CN1035557C (en) | Continuous coking iron alloy coke furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |